Greetings Towertalkians, I began pre-assembling (on the ground) the top section of a Rohn 25 tower I am installing soon. I am using standard sections with a flat top adaptor. I intend to install two
Hi Steve, thanks for the reply << Now that you've got the accessory shelf carved up, where are you going to mount the rotator? Only the Ham IV - not the T2X - will work inside the 25G (except the ope
Hi Scott. Sounds like a nice, compact tower setup. You definitely want to stay away from using rope as permanent guys. The forces that can build up on your tower are surprising in bad weather. To ans
<<I've tried a cutting wheel in both electric and pneumatic drills, but they don't spin fast enough..snip..Ideas?>> I once used a hand-held electric angle grinder with an abrasive disc to cut rebar.
Greetings, I recently compared some 1/4" grips that I have on hand and noticed that they don't match. Both are from Preformed Line Products, and are for 1/4" EHS. On the tiny little tags, one is name
<<From: "John Crovelli" <w2gd@hotmail.com> I hope someone on this reflector will be able to help me. Problem: How to inhibit corrosion of Rohn 25G steel tower in salt water envirnoments.>> Hi John, H
<<The idea of power washing is not out of the question. Actually, one of the P43 station owners is in the process of developing such a system, primarily to wash down critical sections of his antennas
<<Another thing to think about is the coefficient of elasticity. That may be the wrong term, but what I mean is how much does it stretch for a given load. In a recent calculation posted on his Web si
<<Hi Gene, Just a couple "off the cuff" observations. Personally, if I'm going to fall, I'd prefer to fall the least distance possible, like a few feet!, before any restraints play havoc with my some
Oops, let me make a clarification on the elasticity comparison: I failed to include that the relative elasticities among the materials is for the same cross-sectional area! Sorry for the confusion. I
Ty wrote: <<Then we can go back to comparing similar tensile strength materials and realize "Hey, 3/8" diameter fiberglass rod IS a lot lighter than 5/16" EHS guy cable...even without the extra insul
Hey Walt, This product is carried by Radio Works. http://www.radioworks.com/ they sell a selection of ropes, including a 3/16", olive drab dacron rope, rated at 700 lb max load, 140 lb working load.
<< This brings me to the following: I wonder if there is engineering/scientific basis for the 10% tension rule? What if 3/16 EHS or 4000 lb Phillystran were tensioned to 600 lb? Is this unsafe? Tnx/B
<< From: Brian Sarkisian <kg8co@lni.net> Can anyone recommend good reading abt mast pipe selections that can be found on the internet ?Thank You Brian, KG8CO >> Hi Brian, Take a look at the FAQ's for
Pete, So glad to hear your Ham equipment survived. I also use a grounded entrance panel in my shack's window and leave my equipment disconnected when not operating. ALL conductors from the tower are
Hi Mike, I've used dielectric spark plug boot grease, available cheaply at auto parts stores, with good success for this. --...MARK_N1LO...-- <<...snip...What would you folks recommend for protecting
Hi All, I have seen what you're looking for. They can be found by searching for "exploding knots". They can be released by yanking the free end. You would tie the knot and leave the free end long eno
Hi All, When I was researching my tower, I ran into the same controversy as to which protection scheme worked best. I decided to adopt more than one. A prerequisite, of course, is to have a good ligh
One inexpensive way to provide a sacrificial UV layer to fiberglass and polymers is with a single layer of Scotch Super-33 tape. This stuff really holds up well to UV. I spiral-wrapped my VHF/UHF ver
Gerald wrote: << SNIP....After reworking the phasing system on a 48 yagi 2m eme array several times due to water/condensation ingress I "discovered" a 3M product available from Home Depot called Line